Single-arm routing
I. Glossary
Routing-arm (router-on-a-stick ) by means disposed on an interface of the router sub-interface mode (or "logical interface", there is no real physical interface), to achieve expansion in the wan port routing Alfa and demand lan port.
Second, how to open
For the environment: Supports open in only one card case
How to open: open the console interface operation in Chinese, Chinese console menu Advanced - VGA port router connected to the display, the keyboard connected to the front USB port.
V input operation is on, you need to restart to take effect after opening
After a successful turn, automatically generate eight virtual NICs
Precautions:
This eight virtual network card itself carries VLAN information corresponding VLAN1-VLAN8
Third, the actual case to explain
① Environment: single NIC routers, switches (J5028) an external network line (DHCP automatic acquisition), both have computer access network needs
② environment topology:
NOTE: Internet access switch 8, two PC 7 and access switch 21, a switch router 13
③ routing configuration: wan1 binding VETH8 card, access DHCP mode select
Extended lan2, binding VETH7 card, set the IP address 192.168.50.1
Corresponding to the interface enable DHCP LAN2
④ Switch Configuration:
A trunk port 13 is provided, by allowing vlan7 and vlan8
8 is provided a home VLAN8
7 and 21 provided a home VLAN7
⑤ After setup is complete, PC can automatically obtain the IP address of the Internet